xref: /minix3/external/bsd/tmux/dist/cmd-join-pane.c (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1 /* Id */
2 
3 /*
4  * Copyright (c) 2011 George Nachman <tmux@georgester.com>
5  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
6  *
7  * Permission to use, copy, modify, and distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 #include <sys/types.h>
21 
22 #include <stdlib.h>
23 #include <unistd.h>
24 
25 #include "tmux.h"
26 
27 /*
28  * Join or move a pane into another (like split/swap/kill).
29  */
30 
31 void		 cmd_join_pane_key_binding(struct cmd *, int);
32 enum cmd_retval	 cmd_join_pane_exec(struct cmd *, struct cmd_q *);
33 
34 enum cmd_retval	 join_pane(struct cmd *, struct cmd_q *, int);
35 
36 const struct cmd_entry cmd_join_pane_entry = {
37 	"join-pane", "joinp",
38 	"bdhvp:l:s:t:", 0, 0,
39 	"[-bdhv] [-p percentage|-l size] [-s src-pane] [-t dst-pane]",
40 	0,
41 	cmd_join_pane_key_binding,
42 	cmd_join_pane_exec
43 };
44 
45 const struct cmd_entry cmd_move_pane_entry = {
46 	"move-pane", "movep",
47 	"bdhvp:l:s:t:", 0, 0,
48 	"[-bdhv] [-p percentage|-l size] [-s src-pane] [-t dst-pane]",
49 	0,
50 	NULL,
51 	cmd_join_pane_exec
52 };
53 
54 void
cmd_join_pane_key_binding(struct cmd * self,int key)55 cmd_join_pane_key_binding(struct cmd *self, int key)
56 {
57 	switch (key) {
58 	case '%':
59 		self->args = args_create(0);
60 		args_set(self->args, 'h', NULL);
61 		break;
62 	default:
63 		self->args = args_create(0);
64 		break;
65 	}
66 }
67 
68 enum cmd_retval
cmd_join_pane_exec(struct cmd * self,struct cmd_q * cmdq)69 cmd_join_pane_exec(struct cmd *self, struct cmd_q *cmdq)
70 {
71 	return (join_pane(self, cmdq, self->entry == &cmd_join_pane_entry));
72 }
73 
74 enum cmd_retval
join_pane(struct cmd * self,struct cmd_q * cmdq,int not_same_window)75 join_pane(struct cmd *self, struct cmd_q *cmdq, int not_same_window)
76 {
77 	struct args		*args = self->args;
78 	struct session		*dst_s;
79 	struct winlink		*src_wl, *dst_wl;
80 	struct window		*src_w, *dst_w;
81 	struct window_pane	*src_wp, *dst_wp;
82 	char			*cause;
83 	int			 size, percentage, dst_idx;
84 	enum layout_type	 type;
85 	struct layout_cell	*lc;
86 
87 	dst_wl = cmd_find_pane(cmdq, args_get(args, 't'), &dst_s, &dst_wp);
88 	if (dst_wl == NULL)
89 		return (CMD_RETURN_ERROR);
90 	dst_w = dst_wl->window;
91 	dst_idx = dst_wl->idx;
92 	server_unzoom_window(dst_w);
93 
94 	src_wl = cmd_find_pane(cmdq, args_get(args, 's'), NULL, &src_wp);
95 	if (src_wl == NULL)
96 		return (CMD_RETURN_ERROR);
97 	src_w = src_wl->window;
98 	server_unzoom_window(src_w);
99 
100 	if (not_same_window && src_w == dst_w) {
101 		cmdq_error(cmdq, "can't join a pane to its own window");
102 		return (CMD_RETURN_ERROR);
103 	}
104 	if (!not_same_window && src_wp == dst_wp) {
105 		cmdq_error(cmdq, "source and target panes must be different");
106 		return (CMD_RETURN_ERROR);
107 	}
108 
109 	type = LAYOUT_TOPBOTTOM;
110 	if (args_has(args, 'h'))
111 		type = LAYOUT_LEFTRIGHT;
112 
113 	size = -1;
114 	if (args_has(args, 'l')) {
115 		size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
116 		if (cause != NULL) {
117 			cmdq_error(cmdq, "size %s", cause);
118 			free(cause);
119 			return (CMD_RETURN_ERROR);
120 		}
121 	} else if (args_has(args, 'p')) {
122 		percentage = args_strtonum(args, 'p', 0, 100, &cause);
123 		if (cause != NULL) {
124 			cmdq_error(cmdq, "percentage %s", cause);
125 			free(cause);
126 			return (CMD_RETURN_ERROR);
127 		}
128 		if (type == LAYOUT_TOPBOTTOM)
129 			size = (dst_wp->sy * percentage) / 100;
130 		else
131 			size = (dst_wp->sx * percentage) / 100;
132 	}
133 	lc = layout_split_pane(dst_wp, type, size, args_has(args, 'b'));
134 	if (lc == NULL) {
135 		cmdq_error(cmdq, "create pane failed: pane too small");
136 		return (CMD_RETURN_ERROR);
137 	}
138 
139 	layout_close_pane(src_wp);
140 
141 	if (src_w->active == src_wp) {
142 		src_w->active = TAILQ_PREV(src_wp, window_panes, entry);
143 		if (src_w->active == NULL)
144 			src_w->active = TAILQ_NEXT(src_wp, entry);
145 	}
146 	TAILQ_REMOVE(&src_w->panes, src_wp, entry);
147 
148 	if (window_count_panes(src_w) == 0)
149 		server_kill_window(src_w);
150 	else
151 		notify_window_layout_changed(src_w);
152 
153 	src_wp->window = dst_w;
154 	TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);
155 	layout_assign_pane(lc, src_wp);
156 
157 	recalculate_sizes();
158 
159 	server_redraw_window(src_w);
160 	server_redraw_window(dst_w);
161 
162 	if (!args_has(args, 'd')) {
163 		window_set_active_pane(dst_w, src_wp);
164 		session_select(dst_s, dst_idx);
165 		server_redraw_session(dst_s);
166 	} else
167 		server_status_session(dst_s);
168 
169 	notify_window_layout_changed(dst_w);
170 	return (CMD_RETURN_NORMAL);
171 }
172